Publication
The Diverse Nature of Ion Speciation at the Nanoscale Hydrophobic/Water Interface
Related publications (42)
Deriving Major Ion Concentrations at High Resolution from Continuous Electrical Conductivity Measurements in Karst Systems
Time series of hydrochemical parameters support the investigation of dominant karst hydrological processes and conceptual model structures. Nevertheless, high costs for sample collection and analyses cause hydrochemical data to be rarely available at a suf ...
SPRINGER INTERNATIONAL PUBLISHING AG2023Understanding the role of surface oxygen-containing functional groups on carbon-supported cobalt catalysts for the oxygen evolution reaction
Andreas Züttel, Thi Ha My Pham, Kangning Zhao, Youngdon Ko, Liping Zhong, Manhui Wei
Supported Co-based catalysts exhibit promising catalytic activities in the oxygen evolution reaction (OER) during alkaline water electrolysis. Surface functionalization of the support modulates the dispersion of the catalysts and their interaction with the ...
ROYAL SOC CHEMISTRY2023Using continuous electrical conductivity measurements to derive major solute concentrations in karst systems
Hydrochemical data of karst springs provide valuable insights into the internal hydrodynamical functioning of karst systems and support model structure identification. However, the collection of high-frequency time series of major solute species is limited ...
WILEY2023Size dependence of second-harmonic scattering from nanoparticles: Disentangling surface and electrostatic contributions
Sylvie Roke, Arianna Marchioro, Bingxin Chu
Polarimetric angle-resolved second-harmonic scattering (AR-SHS) is an all-optical tool enabling the study of unlabeled interfaces of nano-sized particles in an aqueous solution. As the second harmonic signal is modulated by interference between nonlinear c ...
AIP Publishing2023Molecular insights into the electrical double layer of colloidal oxide particles obtained through second harmonic scattering
Photocatalytic applications play an essential role in the search for alternative energy sources and environmental decontamination techniques. It is of fundamental interest to understand on a molecular level the aqueous solid/liquid interface, where photoca ...
EPFL2022Effects of surface rigidity and metallicity on dielectric properties and ion interactions at aqueous hydrophobic interfaces
Using classical molecular dynamics simulations, we investigate the dielectric properties at interfaces of water with graphene, graphite, hexane, and water vapor. For graphite, we compare metallic and nonmetallic versions. At the vapor-liquid water and hexa ...
AIP Publishing2022Ionization Difference between Weak and Strong Electrolytes as Perturbed by Conductivity Spectra Analysis
While the static structure of aqueous electrolytes has been studied for decades, their dynamic microscopic structure remains unresolved yet critical in many areas. We report a comparative study of dc and ac (1 Hz to 20 GHz) conductivity data of weak and st ...
AMER CHEMICAL SOC2022Graphene Confers Ultralow Friction on Nanogear Cogs
Roberto Guarino, Enrico Gnecco
Friction-induced energy dissipation impedes the performance of nanomechanical devices. Nevertheless, the application of graphene is known to modulate frictional dissipation by inducing local strain. This work reports on the nanomechanics of graphene confor ...
2021Surface Potential and Interfacial Water Order at the Amorphous TiO2 Nanoparticle/Aqueous Interface
Sylvie Roke, Arianna Marchioro, Marie Bischoff
Colloidal nanoparticles exhibit unique size-dependent properties differing from their bulk counterpart, which can be particularly relevant for catalytic applications. To optimize surface-mediated chemical reactions, the understanding of the microscopic str ...
AMER CHEMICAL SOC2020